620642126 has 16 divisors (see below), whose sum is σ = 1003224768. Its totient is φ = 286264800.

The previous prime is 620642111. The next prime is 620642147. The reversal of 620642126 is 621246026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38411 + ... + 52121.

It is an arithmetic number, because the mean of its divisors is an integer number (62701548).

Almost surely, 2^620642126 is an apocalyptic number.

620642126 is a deficient number, since it is larger than the sum of its proper divisors (382582642).

620642126 is a wasteful number, since it uses less digits than its factorization.

620642126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15467.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 620642126 is about 24912.6900594857. The cubic root of 620642126 is about 852.9961742101.

The spelling of 620642126 in words is "six hundred twenty million, six hundred forty-two thousand, one hundred twenty-six".